Develop Bugs

32gb microsd SDHC problem!!

Hi,
I bought a trancend 32gb microsd SDHC class4 card for the note about 10 days back..Worked fine for 2 days then suddenly stopped working...Stopped working means does not get detected in the phone or on the laptop (there is no option for mount/unmount on the phone)..Ive tried my older 8gb card on my phone and that works fine..Ive also tried the screwed up card on my blackberry bold and it doesnt detect there as well..
Well, i thought its the card's fault and ordered a replacement...
They sent one and same story again!! worked for 2 days and same thing again
Now i dont know if its the card's problem or my phone's..Anybody with any idea??
PS - i am rooted and on criskelo v11.2 with speedmod 3-13 if it matters...also both times i had about 15gb of data in the card...
ive also tried blowing and cleaning the contacts..also tried inserting a piece of paper in the slot to cancel out loose contacts but nothing works
Thanks..

What was the file system on the card?

SolteRR said:
What was the file system on the card?
Click to expand...
Click to collapse
err..i dont remember
i formatted it using the phone before putting in files..so whatever the phone formats it as was there...
are there specifications to follow??

Very strange problem , but I am facing the same problem with a Trancend 32 GB card replaced twice and worked only for 1 day and then stopped recognising , not sure if it makes a diff the Mobo was replaced by Service center about 4 months back ,, may be a mobo fault? but my 16GB card just works fine

same thing happened to me also ..... i replaced a new 32g card let me see if it works fine or i will never buy another 32gb trancend card

since both r indians ill talk in tat context
flipkart now says they wont replace anymore and will refund the amount as credit! He also adviced that sandisk works better on the note for this capacity..i dont know wat logic he had! please do update if u find a solution/alternate
@anirudh - which company is that 16gb from? maybe ill have to make do with 16gb since 32 doesnt work

32Gb micro SDHC class 4 by Transcend, not recognised by GT N7000
Hi All,
I'm using a GT N7000 on Official 4.1.2 XXLT5 (recently updated). I'm using a Transcend microsd 32gb class 4 for about a year now with this note. But I'm facing this issue of 'blank SD' and 'unable to format' from 2-3 months now after I updated to one of the official OS upgrade.
I've tried reverting back to all the earlier versions of Android where it worked fine, but there seems to be no change. I can read the card using an external card reader in my laptop, but not through the phone.
I've tried formatting it to all the possible types (NTFS, exFAT, FAT32), nothing seems to work, for the note. I can read it on PC though.
I tried reading the same card in another device, but now it's not readable in that as well. Any suggestion/solution, much appreciated.
Thanks
Baahu

Baahubali said:
Hi All,
I'm using a GT N7000 on Official 4.1.2 XXLT5 (recently updated). I'm using a Transcend microsd 32gb class 4 for about a year now with this note. But I'm facing this issue of 'blank SD' and 'unable to format' from 2-3 months now after I updated to one of the official OS upgrade.
I've tried reverting back to all the earlier versions of Android where it worked fine, but there seems to be no change. I can read the card using an external card reader in my laptop, but not through the phone.
I've tried formatting it to all the possible types (NTFS, exFAT, FAT32), nothing seems to work, for the note. I can read it on PC though.
I tried reading the same card in another device, but now it's not readable in that as well. Any suggestion/solution, much appreciated.
Thanks
Baahu
Click to expand...
Click to collapse
Boot into recovery mode and go to mounts and storage. From there format the external memory card (format /sdcard). Alternatively you could try with a format from the "storage" in settings.

Use the card reader with ur pc. Go to disk management and format the card FAT32. Before formating, delete the partition/partitions on ur card. U should get unallocated space. Create partition and it should work. The big problem is that u may see some problems between note and 32gb card. The phone it may restart and u should go to recovery/download mode to restart it... good luck.
Sent from my GT-N7000 using xda premium

S4 Won't read Sd card

I am stumped! I got a Sandisk 64gb sd card for this. Naturally, it came formatted as exfat. From stock through 3 different CM based ROMs, I can't get this S4 to read the SD card. I even downloaded a partition manager to format it to Fat32. I also wiped it and let the phone format it. Even after that it would read it. I know CM now supports exFat format. I even flashed separately the script from the original thread. In any case my laptop has no problem with the sd card. Any help appreciated.

I have a Patriot 32 gb class 10 that was working fine until s couple of days ago. Then the phone said sd card unexpectedly removed. Pulled battery and card nothing. Did a format still nothing put that card in my Asus transformer tablet. read just fine took the card thatvi had in my tablet without formatting it put it in my s4 and it read it. this is my 4th galaxy device they should have figured this out by now. Any suggestions.
Sent from my SGH-M919 using xda premium

same happened with my 32gb on my note2 and now in my gs4
tapatalk on android

The sudden unmounting and/or sd card not being recognized by the S4 and other devices as mentioned is a known issue that is usually SD card related. Sometimes it's just a matter of reformatting your card to Fat32 if your ROM cannot read exFAT cards.
But if that's not your issue or you already reformatted your card to the appropriate format, the SD card has failed and warranty/replacement is suggested.
Can happen to SanDisk cards in addition to other manufacturers.
You may hear this issue being associated to SanDisk cards if only because they are probably the most counterfeited card out in the market. But the issue can occur to non counterfeit cards also.
To reduce your chances of having theses issues happen, always get your cards from reputable sources, in blister original packaging, etc. And if the price looks too good to be true, it most likely is. Even if you take the above precautions, you can still have issues.
Always back up your data for that 'Just in case moment' in case stuff happens.
Purchasing a card whose Manufacturer and/or Seller has an excellent return/exchange policy is a plus.
Having a spare SD card available can help you troubleshoot what your issue may be regarding a defective card, formatting issue, device issue, etc.

You may want to take a look at this thread, as it may help you out:
http://forum.xda-developers.com/showthread.php?t=2041679

I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app

Bowmanspeer said:
I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Hmmm...
There have been issues with the 64gb SanDisk cards being read by the S4 as well as other devices as described in my previous post, the Ultra cards from what I've read (red & grey) I have the save card, class 10, running without issue on my previous S3 and current S4.
You may want to try the format link above.
You can always purchase another 64GB card on Amazon with a Seller with many, excellent reviews, and go from there, and return what you have to return

Right. That's the very card I have. Thanks for the help.
Sent from my SGH-M919 using xda app-developers app

Bowmanspeer said:
Right. That's the very card I have. Thanks for the help.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Anytime.
Let me know how it goes

This happen to me but with my galaxy s3...turned out sd card was corrupted. Good news was Patriot replaced it with a new one....

If the SD card didn't work in other devices I would seek to exchange it. There are other things I can use it in. I just ordered a 32 GB G skill on new egg. That should do it. The other thing I tried on this sandisk is partition it to 2 smaller ones less than 30 GB each formatted to fat32. Finally it recognized one of those partitions. When I get the other card I'll swap them.
Sent from my SGH-M919 using xda app-developers app

I had the same problem as you OP. I've also downloaded programs to change the format type and stuff, but nothing worked, but I fixed it in a weird way.
My 64gb card didn't work on my samsung. I used many programs to format the card to get it to work, but nothing. What fixed it was....
I took that card and placed it inside my old smartphone (LG G2X). Once placed inside, a pop-up promoted me saying my card was damaged and it will try to fix it. I've tried this on my samsung and it didn't fix it, but once I tried it on this old smartphone, the card for fixed and started to work on my samsung.
I don't know if this could help you, but that's how I fixed my problem.

Format the card to Fat32.
Sent from Spaceball One.

blackknightavalon said:
Format the card to Fat32.
Sent from Spaceball One.
Click to expand...
Click to collapse
I had tried that already when the device initially wouldn't read the sd card. When I partitioned the card in FAT32 then the device picked it up, but only one partition of 29GB.

Bowmanspeer said:
I had tried that already when the device initially wouldn't read the sd card. When I partitioned the card in FAT32 then the device picked it up, but only one partition of 29GB.
Click to expand...
Click to collapse
I don't know what your problem is, then. My 64GB Sandisk card works perfectly in my Galaxy 4.

I don't know what me problem is either. When I have the time I going to return to stock and start over. TWRP won't backup onto the SD card either. Wondering if its behaving this way because I rooted the phone before putting SD card in. Though I have done complete wipe (including internal memory) prior to installing current ROM.
Sent from my SGH-M919 using xda app-developers app

Galaxy S4
Bowmanspeer said:
I started to reply to you but my laptop crashed. Seems this s4 just doesn't like that 64gb sandisk. I had an 8gb card laying around and that worked like a charm. The sandisk was foramted exfat out of the box. I formated fat32 and didn't work. I wiped it and left it without format. Put in the phone to let it format the card. It did--fat32 and then still wouldn't read it or even mount it.
I sure don't have anything to lose by trying a different program to format that card. It could come in handy even if I don't use it in the phone. A camera comes to mind.
Oh yeah, it was easeUS that I used to format the card in the first place. Try something else.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
I have a SanDisk 64gb micro SD card in my S4, and had it ever since I got the phone about 1.5 years ago. now I am getting the issues you all are getting. I have NOT updated to a new firmware version. and I just backed up and reformatted the card. Very frustrating when all your apps disappear. come to find out they are all being stored on the SD card witch is now not responding... I will try a differect card. I wish they would just leave the phone a lot and stop doing so many updates.. they update one thing it screws up another. Ever since the first update my "Drive" app don't work, and they have no clue why.. not even Samsung knows...
oh well
Laurap6286

Laurap6286 said:
I have a SanDisk 64gb micro SD card in my S4, and had it ever since I got the phone about 1.5 years ago. now I am getting the issues you all are getting. I have NOT updated to a new firmware version. and I just backed up and reformatted the card. Very frustrating when all your apps disappear. come to find out they are all being stored on the SD card witch is now not responding... I will try a differect card. I wish they would just leave the phone a lot and stop doing so many updates.. they update one thing it screws up another. Ever since the first update my "Drive" app don't work, and they have no clue why.. not even Samsung knows...
oh well
Laurap6286
Click to expand...
Click to collapse
Just curious as to how you got an S4, 1.5 years ago? :cyclops:

Odd SD Card Response
I have recently upgraded from a ATT Samsung Express (Tracfone) moving my 32GB SD Card into the brand new Galaxy S4 I Knoxed up right out of the box just as a matter of principle. I saferooted the phone and installed TWRP which for some reason refuses to load after a few succesful tries and a backup of my system and restore thern reload of TWRP. My concern in this question (unless some knight in shining armour can make sense of my TWRP issue) is that I am not able to write to the samsung branded SD card I removed from the old phone. I cannot create a ROM directory on it when the phone is connected to the PC, nor can I copy files to it. I had hoped to preserve the photos on the card and suppose I can break down and buy an adapter so it will connect to my PC but the point is it "should" work,, no? I cannot create a directory when the phone is connected to the PC nor can I in ES file Explorer. I've also tried to create a directory in root witth ES and am getting the same error. I just want to get the silly balloons off m screen and get google play to run. I am succesfully rooted. I've tried to reload TWRP with Odin only to get the small print int he uper right hand of the screen then no further. I am able to restore my backups thank God.
This is making me batty on a three step process. The card is my main concern right now as I can't load the ROM to it once I get TWRP figured out. Thanks in advance for all the great help I always get. The better I get the more I'll contribute....I promise.
's

I'm having the same problem. We are not alone, there are numerous threads in the other S4 forums, like this one http://forum.xda-developers.com/showthread.php?t=2281813&page=14

[Q] MicroSD Question/issue

I have the Tab pro 12.2 KK4.4.2 and purchased a patriot Micro SDXC 64 GB. My question is similar to other posts and I will try the posted solutions when someone can confirm the validity of the SDcard. Samsung specs for the Tab(SM-T900) state support for micro SDHC up to 64 GB. All of the reading I have done shows that the largest SDHC cards is 32GB and anything larger is a SDXC. So is my64GB SDXC card actually supported in my device? I have not been able to write MP3 files from my PC to the card or any other files with any success. Put I am able to do it fine on a smaller 16GB SDHC card. Can this version SM-T900ZKAXAC be rooted?
Thanks

Mossey said:
I have the Tab pro 12.2 KK4.4.2 and purchased a patriot Micro SDXC 64 GB. My question is similar to other posts and I will try the posted solutions when someone can confirm the validity of the SDcard. Samsung specs for the Tab(SM-T900) state support for micro SDHC up to 64 GB. All of the reading I have done shows that the largest SDHC cards is 32GB and anything larger is a SDXC. So is my64GB SDXC card actually supported in my device? I have not been able to write MP3 files from my PC to the card or any other files with any success. Put I am able to do it fine on a smaller 16GB SDHC card. Can this version SM-T900ZKAXAC be rooted?
Thanks
Click to expand...
Click to collapse
I contacted Samsung and they are going to escalate the issue up the chain. It seems as though the tablet only supports Fat32 file system, while SDXC cards are only can only be formatted using exFat or NTFS. That being said I tried formatting my card with NTFS in hopes it might allow Fat32 after but it wouldn't format using NTFS.
Is no one else having this issue, as I have not seen 1 other post regarding this particular problem?

Mossey said:
I contacted Samsung and they are going to escalate the issue up the chain. It seems as though the tablet only supports Fat32 file system, while SDXC cards are only can only be formatted using exFat or NTFS. That being said I tried formatting my card with NTFS in hopes it might allow Fat32 after but it wouldn't format using NTFS.
Is no one else having this issue, as I have not seen 1 other post regarding this particular problem?
Click to expand...
Click to collapse
Mossey, do you happen to have a Windows computer?
plug the sd into a different phone if you can and connect as external. Click Start->My computer->right click and format to Fat32. I do this all the time
Silkmeister1

Silkmeister1 said:
Mossey, do you happen to have a Windows computer?
plug the sd into a different phone if you can and connect as external. Click Start->My computer->right click and format to Fat32. I do this all the time
Silkmeister1
Click to expand...
Click to collapse
I thought for second you had the solution. I have another tablet and tried reformatting using it. I had the stick showing fat32 file system but it was 32gb vs 64gb. But the tablet recognized it initially, so l reformatted using the tab, but now the tablet looses the sd after it writes a few files to sd. Then if I try to view files on the tab, I get a message that the ext sd card may not be readable.

Mossey said:
I thought for second you had the solution. I have another tablet and tried reformatting using it. I had the stick showing fat32 file system but it was 32gb vs 64gb. But the tablet recognized it initially, so l reformatted using the tab, but now the tablet looses the sd after it writes a few files to sd. Then if I try to view files on the tab, I get a message that the ext sd card may not be readable.
Click to expand...
Click to collapse
Hm interesting, it seems like it might be a permissions issue.
Can you try doing this on a device that runs something before 4.4.2? Kitkat is known to cause lots of problems with SDcards
hope you find the solution.
Silkmeister

Silkmeister1 said:
Hm interesting, it seems like it might be a permissions issue.
Can you try doing this on a device that runs something before 4.4.2? Kitkat is known to cause lots of problems with SDcards
hope you find the solution.
Silkmeister
Click to expand...
Click to collapse
Again- Thanks. I thought it odd as well and it didn't add up. Although the SD card was working OK in my new Sony camera I decided to return it to C.C. for an exchange, voila problem solved. This still tells me that Samsung Technical support is useless. Everyone spent a lot of time trying to solve this issue. I still am finding odd things happening with Kies but I have found some work a rounds.

Micro SD-Card Problem

Greetings everyone,
I tried finding a solution for this problem for quiet a while now already, but I simply can't find one.
I have a 64gb sdxc card by Sandisk and it doesn't work properly anymore.
The problem is, that it restores the partition always over and over again when I try to partition or format the sd card.
Like when I delete the partition and apply the changes and the card is beeing mounted again, it shows the same partition with the same files again before I deleted it.
Is there a way to fix this? Because except from that problem it works as it should.
Could it be that write protection issue I've read about here?
It first appeared when I used Omnirom for a while on my S3
Thanks in advance for your help :good:

folkbytes said:
Greetings everyone,
I tried finding a solution for this problem for quiet a while now already, but I simply can't find one.
I have a 64gb sdxc card by Sandisk and it doesn't work properly anymore.
The problem is, that it restores the partition always over and over again when I try to partition or format the sd card.
Like when I delete the partition and apply the changes and the card is beeing mounted again, it shows the same partition with the same files again before I deleted it.
Is there a way to fix this? Because except from that problem it works as it should.
Could it be that write protection issue I've read about here?
It first appeared when I used Omnirom for a while on my S3
Thanks in advance for your help :good:
Click to expand...
Click to collapse
How old is the card? Any noticeable cracks, burns, or damage to the contact on the card?

Your card might be bad, I have had a bad experience with sandisk memory cards , i bought one and had to exchange it 5 times for a new one , finally i did get a reliable one.So if possible see If you can return it

Not sure how old the card is. Should be around a year I think.
The card has no damages from the outside. The pc can read it too, same for my phone. I can't write files on it or format it or delete partition.
When I remove the card and put it back into the reader, it has the same status as before I changed it.
I read too, that sandisk seems to have problems with their cards lately. Especially this 64gig model.
I guess too that it is really bad and no good anymore.

You should at least be able to return it since sandisk has a lifetime warranty (and seeing as there is not physical damage they will probably replace it with a bit of convincing)

As convenient as SD/micro's can be, they seem to have plenty of issues like this. Certain brands work wonders for some people and some are lemons. I've always had a good experience with Sandisk, but see if they'll replace it or check out Kingston or Transcend or another brand.

I'm gonna do that. Thanks for the help so far.

Solved!
folkbytes said:
I'm gonna do that. Thanks for the help so far.
Click to expand...
Click to collapse
Try repair by MMC Medic app.

64gb micro SD problems

I'm running Jasminerom 4.0 and I cannot get 64gb micro sd cards to work properly on my VS985. If I format via settings, it defaults to exfat. Performance suffers and I seem to get random corruption of files. I've tried formatting to fat32 via TWRP and via Windows. Performance is better for a bit, but in time the phone starts not writing to the card for some reason. I've tried 2 different cards, Samsung evo and SanDisk ultra. I'm currently using a 32gb SanDisk ultra which works as it should.
Any others have this problem with 64gb cards?

blueblazer22x said:
I'm running Jasminerom 4.0 and I cannot get 64gb micro sd cards to work properly on my VS985. If I format via settings, it defaults to exfat. Performance suffers and I seem to get random corruption of files. I've tried formatting to fat32 via TWRP and via Windows. Performance is better for a bit, but in time the phone starts not writing to the card for some reason. I've tried 2 different cards, Samsung evo and SanDisk ultra. I'm currently using a 32gb SanDisk ultra which works as it should.
Any others have this problem with 64gb cards?
Click to expand...
Click to collapse
Yes i have this problem too. I somehow semi-repaired files corruption by formating the 64GB card with Easues partition manager. Format it with this program as FAT32 and see if it helps.

Thanks I'll try that and let you know how I make out.
Using a 32gb card is an ok workaround but this problem really bugs me. I'm hoping the lollipop update might fix this issue. We'll see...

blueblazer22x said:
Thanks I'll try that and let you know how I make out.
Using a 32gb card is an ok workaround but this problem really bugs me. I'm hoping the lollipop update might fix this issue. We'll see...
Click to expand...
Click to collapse
Like mentioned above, formatting your card to 2x fat32 partitions should fix it. The problem is with exFAT. I doesn't see it as a removable memory and ends up getting corrupted, sometimes, a reboot will fix it but after a while, it needs a fresh format.
I'm thinking the problem is with the kernel as stock didn't give me issues, could be wrong though. I know CM broke it last week so ROM that are base off it would have it broken as well but could be fixed by now.

I used Easeus to format to fat32. The card worked great this weekend.
This morning I checked for some files and several entire directories had been deleted. Looks like I'm having the same issues as before, and I really don't know what is triggering it. I'll stick with my 32gb card for now.

has anyone found a solution for this I've bought several different top of the line cards, anything over 32gb stuff gets corrupt.
appreciate any help, thanks in advance